Improvement in holders for lamp-reflectors



DUNNING. Holder for Lamp Reflectors.

No. 218,369. Patented Aug. 12,1879.

ILPEIEBS, PHOTO-UTHDGRAPHHI, WASHINGTON. n C.

UNITED STATES PATENT OFFICE.

FRANK A. DUNNING, OF JOLIET, ILLINOIS.

IMPROVEMENT IN HOLDERS FOR LAMP-REFLECTORS.

Specification forming part of Letters Patent No. 218,369, dated August12, 1879; application filed March 21, 1879.

To all whom it may concern:

Be it known that I, FRANK A. DUNNING, of the city of Joliet, Willcounty, and State of Illinois, have invented certain Improvements in aHolder for a Lamp-Reflector, the construction and operation of which Iwill proceed to explain, reference being had to the annexed drawings,making a part of this specification, in which Figures 1 and 3 are sideelevations, and Fig. 2 is a plan view of the top.

The nature of my invention consists in the use of a universal joint tohold the reflector of a lamp, so constructed that the reflected lightfrom a lamp may be cast in any desired direction.

In the drawings, A represents a reflector; d, a shaft, attached to therear side of the reflector A, and passing through the eye 0 of therocking shaft 6.

it represents a forked standard, containing the journals '6 for therocking shaft eto rest in.

H represents a ratchet-wheel, attached to the end of the rocking shaft6; and P, a springpawl, engaging with the ratchet-wheel, one end ofwhich pawl is attached to the arm B, or to a portion of an ordinarylamp-bracket, and the other terminates in a hook, which rests in thenotches n of the ratchet-wheel H.

Fig. 1 represents the universal joint, containing a lamp-reflector,attached to the end of an independent flexible arm, B, which may bettached to the side of or near any bracketlamp, so that a lamp-reflect0rmay be placed on any side of a lamp, and cast the reflected light of alamp in any desired direction.

Fig. 2 represents the top of the universal joint, showing the manner inwhich the rocking shaft 0 is placed in the forked standard a, the mannerin which the rocking shaft 6 is attached to the ratchet-wheel H, and themanner in which the wire or pawl P is placed in the notches n in theratchet-wheel H.

Fig. 3 represents the universal joint, containing a lamp-reflector andattached to an ordinary lamp-bracket, and showing the manner in whichthe reflector A may be turned.

It will be observed that, by this construction, the pawl P may beraised, and the ratchetwheel H turned in either direction, thus causingthe rocking shaft 6 to turn with it, giving an angle to the reflector A,which is attached to the rocking shaft by means of the shaft d, whichrests in the eye c of the rocking shaft 0. The lamp-reflector A may beturned in the eye 0 sidewise in either direction. a

This universal joint may be used on any lamp where it is practicable.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is as follows:

The bracket B, provided with the ratchet H, pawl P, rocking shaft 0, andforked standard a, to adjust the reflector A, in the manner and for thepurpose set forth.

FRANK A. DUNN ING.

Witnesses:

THos. H. HUTGHINS, WM. J. HUTCHINS.

